# CVE-2026-98652: KVM: s390: Add missing srcu in kvm_s390_set_irq_state()

CVE-2026-98652 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98652 (version 7.2.9-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-98652
- Priority: Routine
- CVSS: 4.1 (Moderate)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 18, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98652

## Description

In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Add missing srcu in kvm_s390_set_irq_state()  Like kvm_s390_inject_vcpu(), kvm_s390_set_irq_state() also needs the kvm->srcu or the slots lock when performing the Store status operation.  Fix by taking kvm->srcu in kvm_s390_set_irq_state().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.9-1 | [DEBIAN-CVE-2026-98652](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98652.md) | Oct 19, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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